Low-density treatment fluid and methods for treating thief zones located above pay zones
US-12116525-B2 · Oct 15, 2024 · US
Well treatment
US8991497B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8991497-B2 |
| Application number | US-201213402866-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 22, 2012 |
| Priority date | Mar 11, 2010 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
The following describes a novel and alternative mechanism in regards to releasing reactive chemicals. Namely, utilizing shells containing multiple emulsions that can be blended with the base fluids, and then react with said base fluid upon exposure to a trigger e.g. high shear and/or elongation flow, therefore plugging even large fractures. Such gelling lost circulation material allows to obtain a reliable carrier and fast reaction when triggered.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for treating lost circulation comprising: (i) pumping, in a zone of a wellbore or near-wellbore, a gelling lost circulation material (LCM) comprising a carrier fluid containing polymerizable compounds; the LCM further comprising a polymerization initiator and shells having drops of accelerator contained therein; (ii) submitting the gelling LCM to a stress sufficient to rupture the integrity of the shells; and (iii) allowing contact to occu…
Assignees
Inventors
Classifications
Fixed Constructions · mapped topic
- C09K8/508Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Fixed Constructions · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8991497B2 cover?
- The following describes a novel and alternative mechanism in regards to releasing reactive chemicals. Namely, utilizing shells containing multiple emulsions that can be blended with the base fluids, and then react with said base fluid upon exposure to a trigger e.g. high shear and/or elongation flow, therefore plugging even large fractures. Such gelling lost circulation material allows to obtai…
- Who is the assignee on this patent?
- Lee Jesse C, Boulard Stephane, Shindgikar Nikhil, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification C09K8/508. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).